This papercraft is the Shadowmourne, a legendary two-handed axe which is a quest reward from [80R] , from the MMORPG game World of Warcraft, the paper model was created by Mikhail Pistoletov. The size of finished model is about 528 (H) x 1200 (W) x 172 (D) mm.
The Shadowmourne is available exclusively to warriors, paladins, and death knights. Equipping Shadowmourne awards the Feat of Strength,.
You can download the paper model template here: World of Warcraft - Shadowmourne Free Papercraft Download